A new record was set on April 4 for J-2X engine test firings when the engine was fired for 570 seconds on the A-2 test stand at Stennis. With the completion of the test series on this stand, the engine will now be moved to the A-1 test stand where it will undergo gimbaling tests to ensure it can pivot safely, much like it will do as the steering propulsion for the second stage of NASA's Space Launch System.